Bugs fixed:
- Fix using predictable filenames in /tmp (CVE-2015-7758)
- Fix source id warnings during motion runtime
- Fix open-project crash due to missing file chooser title
- Fix synctex for input files with relative paths
- Add descriptive keywords to our desktop entry file
- Improvements to the bibliography detection regex
- Only allow loading tex files through file->open
- Desensitize cut/copy tools when no text is selected
- Various improvements to build system
- Removed deprecated code
